Mumbai, July 22 -- Shares of Bandhan Bank slumped nearly 15 per cent on Wednesday after the private sector lender reported its June quarter earnings and warned that net interest margins (NIMs) are likely to remain under pressure over the next two quarters, prompting it to lower its profitability guidance for FY27.

During its post-results conference call, the bank revised its exit return on assets (RoA) guidance for the fourth quarter of FY27 to 1.2-1.4 per cent from the earlier 1.6-1.8 per cent, citing persistent pressure on margins and elevated operating expenses.

Management attributed the downward revision to a challenging external environment marked by elevated funding costs, geopolitical tensions in West Asia, energy price volatilit...